Mixing valve



Dec. 5, 1933. E. L, KELLAN mxme VALVE Filed April 5, 1930 2 Sheets-Sheet 1 Dec. 5, 1933. L, KELLAN 1,938,454

MIXING VALVE Filed April 5, 1930 2 Sheets-Sheet 2 236915 /9 In-mum 48 /9 W [6! H 36 M T msr f 'l /o 38 H. m LL r 1H1 22 W Milli zmrdzmm Patented Dec. 5, 1933 UNITED. STATES PA ENT OFFICE" 11 claims.

This invention relates to mixing valves, and has for one of its objects the provision of a device of this, character in which a plurality of valves, such as those serving a shower'and those serving a tub, maybe combined in one 'fixture.

A further object of the-myention is to provide a multiple compartment mixing valve in which a common control member serves to operate the hot and cold water valves; in selected order and to desired extent, through'theaotion of cams operated by the control member and acting directly upon the valve stems to control the temperature and direction of flow of the water.

Another object is the provision in a device of this type of a laminated cam construction by means of which the volume of flow permitted by the operation of the valves may be varied simply by the insertion or removal of one or more cam sections or layers. 1

Other objects and advantages of the invention will be apparent as it is better understood from the following description, which, taken in connection with the accompanying drawings, discloses a preferred embodimentthereof.

Referring to the drawings,v

Fig. 1 is a front elevation of a combination mixing valve in which my invention is embodied;

Fig. 2 is a side elevation thereof;

Fig. 3 is an enlarged elevational view showing the valve operating cams and the controlmember .or sweep for actuating the same, the view.be-- ing taken substantially on the plane 3*'3 in Fig. 2;

Fig. 4 is a section through the valve taken-on line 4-4 of Fig. 3. V

Fig. 5 is a sectional and elevational view of th upper part of the housing, taken substantially at right angles to Fig. 4, and showing the action of the cams upon the valve stems when actuated by the control member or sweep, the latter being shown in central position, in which the flow through the hot and cold water valves is substantially equal; and

Figs. 6 and 7 are front and side elevational views, respectively, of a modified form of cam composed of a plurality of sections or laminations, the number of which may be varied as may be desired to determine the volume of thefiow through the individual hot and cold water valves when the latter are opened by the action of the cams. 4

Upon said drawings, whichillustrate thebest form in which I have thus far contemplated. applying the principles of the invention, therefer- 5 ence character 11 indicates a metalshelllcontaining four water compartments indicated respectively by the numerals 12, 13, 14 and 15, the compartments 12 and 13 beingseparated by a partition 10, (Fig. 4) and the compartments 14 and 15 being separated by a"partition 20 (Fig. 3

of screws 22 extending downwardly into a hori- 7 zontal partition 23 insaid'shell 11. I

The compartment 15 is adapted to receive be water through an inletpipe 24 and the compartment 14 is conneoted'by a pipe 25 with a source of cold water, the water in both compartments being normally under pressure in accordance 7 with the .usual practice inwater supply systems serving houses andother buildings in which the device would normally be used. Two hot water valves 26 areprotidedin the partition 235cm or said valves communicating with the 'compart- 8 ment 12 and the other with thejcompartment 13,

said last mentioned compartments being com municablyconnected with the-tub and shower, respectively, by means of pipes 27 'and 28 {see Fig. 1). Similarlyithe cold water compartment 14 is connected by corresponding valves with said compartments 12 and 13, there being, thus; one 5 hot water valve and one cold water v-alvefor each of'said compartments.

- Ifhe stems 30 11116130 of said hot water valves 26 are enga'ged by pins 29 and 31 respectively,;

which extend upwardly "through the packing I glands 32 and 33 in the bottom plate 21 of the cam housing 16, and the stems of the cold water valves are engaged by pins34 and 35 whichextend through similar packing glands into the cam housing, as clearly shown in Fig. 3. As will be notedby reference to this figure, the pins 29" and 34 are positioned adjacent each'otl'ier, as are the pins 31 and35, this arrangement'being for n purpose which will presently appear; The valve heads, indicated by the reference character36 in Fig. 4, are normally held seated by means of springs 37 positioned inside the valve shells,

which are providedwith outlet ports 10'. For- 9 construction of valves suitable for this purpose reference may be had to my co-pending application Serial No. 204,191, filed July 8,1927.

' Mounted in the cam housing 16 are the cams for operating the valve actuating pins 29, 31, 34

and 35, these cams, as shown in Figs. 3 to 5 inclusive, consisting of two pairs mounted respectively on horizontal screws 38 which extend through the circumferential wall of the cam housing 16 and into lugs 39 and 41 provided on the bottom plate 21 of said housing. One pair of said cams, the members of which are indicated by the reference characters 42 and 43, are used to operate the hot water valve actuating pins 29 and 31, and the other pair, the members of which are identified by the numerals 44 and 45, are employed to operate the cold water valve actuating pins 34 and 35, the inner-ends of said cam.

members being hinged upon the screws 38, as clearly shown in Fig. 3. The cam members are of arcuate form, as is best shown in Fig. 4. A stop 50 projects from the lower face of sweep 46 and is so positioned as to engage an inwardly projecting portion of lug 39 to limit the turning of shaft 47 when turned in either direction.

A cam actuating member or sweep 46 is pro vided upon a vertical shaft 47 disposed centrally of the cam housing and extending upwardly through the top thereof, which is provided with a stufling box 48 surrounding said shaft. Upon the end of the shaft is a knob or handle 49 by means of which the shaft and the sweep 46 carried thereby may be actuated.

The cams, if desired, may be constructed as shown in Figs. 6 and 7, consisting, in this embodiment, of a plurality of layers or laminations 51, which, as illustrated, are made in two semicircular sections, although they obviously could be in the form of continuous rings if desired. Whether in sections or in the form of continuous rings, said cam members may be loosely positioned upon vertical screws 52 extending through apertures 53 in laterally projecting lugs 54 on said cam members, the screws if desired being those which are employed to fasten the top plate 18 upon the cam housing 16. It will be evident that with this construction any desired number of layers or laminations may be used, and the number may be varied at will, thereby determining the extent to which valve stems will bedepressed by actuation of the cams and in turn controlling the volume of flow through the valves.

The hot, cold and warm positions are indicated on the exterior of the plate 18 for both the shower and the tub, and when the sweep is in a position corresponding to any one of the legends on said plate the flow will be in the direction and the water of. the temperature indicated. A suitable indicator can of course be provided to show the position of 'the sweep, and when the latter is rotated from the ofi position shown in Fig, 1

in counter-clockwise direction it will be apparent that the cold water will first be turned on in the shower by depression of the cam member 44 actuating the pin 34. Further rotation of the sweep will bring it into contact with the cam member 42, causing the same to actuate the pin 29, and when such sweep is in mid-position, indicated by the word warm in Fig. 1, equal amounts of hot and coldwater will be admitted to the compartment 13 and thence through the pipe 28 to the shower. Further rotation of the sweep will cause the same to disengage the cam member 44 and further depress the member 42, causing a full flow'of hot water, the sweep coming to stopat that point on lug 39. It will be understoodthat the valve stems are raised by the springs 37 when the pressure thereon is relieved.

Rotation of the sweep or control member in the opposite direction from the oil position shown in Fig. 1 will similarly control the temperature and the flow of the water to the tub.

It will be observed that the construction above described affords, or may afford, a mixing chamber of large area in which the hot and cold water may be thoroughly mixed before entering the pipes.

The foregoing detailed description has been given for clearness of understanding only and no unnecessary limitations should be understood therefrom, but the appended claims should be construed as broadly as permissible in view of the prior art.

I claim:

1. A mixing valve comprising: a shell having four water compartments; a hot water inlet to one of said compartments; a cold water inlet to another of said compartments; outlets from the other two compartments leading respectively to separate fixtures, as a shower and a tub; valves in each of said shower and tub outlet compartments for admitting hot water thereto from the hot water inlet compartment, additional valves ineach of said shower and tub outlet compartments for admitting cold water thereto from the cold water inlet compartment; and control mechanism, including a common actuating member, for operating said valves to selectively admit hot or cold or both hot and cold water to either of said outlet compartments.

2. A mixing valve comprising: a shell having four water compartments; a hot waterinlet to one of said compartments; a cold water inlet to another of said compartments; outlets from the other two compartments leading respectively to separate fixtures, as a shower and a tub; valves in each of said shower and tub outlet compartments for admitting hot water thereto from the hot water inlet compartment, additional valves in each of said shower and tub outlet compartments for admitting cold water thereto from the cold water inlet compartment; and control mechanism including a common actuating member and cam means for operating said valves in selected order to admit hot or cold orboth hot and cold water to either of said outlet compartments.

3. A mixing valve comprising: a shell having four water compartments; a hot water inlet to one of said compartments; a cold water inlet to another of said compartments; outlets from the other two compartments leading respectively to separate fixtures, as a shower and a tub; valves in each of said shower and tub outlet compartments for admitting hot water thereto from the hot water inlet compartment, additional valves in each of said shower and tub outlet compartments for admitting cold water thereto from the cold water inlet compartment; and control mechanism including a common actuating member and cam means for operating said valves in selected order and certain thereof in combination.

4. A mixing valve comprising: a shell having four water compartments; a hot water inlet to one of said compartments; a cold water inlet to another of said compartments; outlets from the other two compartments leading respectively to separate fixtures, as a shower and a tub; valves in each of said shower and tub outlet compartments for admitting hot water thereto from the hot water inlet compartment, additional valves in each of said shower and tub outlet compartments for admitting cold water thereto from the cold water inlet comp'ar ment; control mechanism including a common actuating member and cam means for operating said valves in selected order to admit hot or cold or both of hot and.

cold water to either of said outlet compartments; and a compartment in which said control mechanism is contained, pins being provided in association with said valves and extending into said compartment and being adapted to be acted upon by said cam means to operate the valves.

5. A mixing valve comprising: a shell having four water compartments; a hot water inlet to one of said compartments; a cold water inlet to another of said compartments; outlets from the other two compartments leading respectively to separate fixtures, as a shower and a tub; valves for admitting hot and cold water to each of said last mentioned compartments; control mechanism including separate pivoted cam members, one for each of said valves, and a common actuating member for operating all said cam. members; and a compartment in which said control mechanism is contained, pins being provided in association with said valves and extending into said compartment and being adapted to be acted upon by said cam members to operate the valves.

6. A mixing valve comprising: a' housing having hot and cold water inlets; a plurality of outlets; valves connecting each outlet with both the hot and cold water inlets; and control mechanism including a single actuating device for operating said valves to selectively admit hot or cold or both hot and cold water to each of said outlets.

7. A mixing valve comprising: a housing having hot and cold water inlets; a plurality of outlets; valves connecting each outlet with both the hot and cold water inlets; and control mechanism including a single actuating device for operating all said valves, said control mechanism including a cam of laminated construction, the

layers of which may be inserted or removed as desired to control the volume of flow through the valves operated thereby.

8. A mixing valve comprising: a housing having hot and cold water inlets; a plurality of out-'--- lets; valves connecting each outlet with both the hot and cold water inlets; and control mechanism including a single actuating device for operating all saidvalves, said control mechanism including a cam of laminated construction, the layers of which may be inserted or removed as desired to control the volume of flow through the valves operated thereby, said cam being formed in sections, each adapted to operate certain of said valves independently of the others.

9. A mixing valve comprising: a housing havcold water valves communicating respectively between the hot and cold water inlets and the outlet; separate cam members for operating said u valves, said cam members being of laminated construction, the layers of which may be individually inserted or removed as desired to control the volume of flow through the associated valve; and means for operating said cams.

10. In a valve fixture the combination of: an intake compartment; an outlet compartment; a valve for .communicably connecting said compartments; and mechanism for operating said valve, including a laminated cam, the layers of which may be inserted or removed as desired to control the volume of flow through the valve.

11. In a valve fixture the combination of: a cold water intake compartment; a'hot water intake compartment; outlet compartments leading to separate fixtures, as a shower and a tub; valves in each of said shower and tuboutlet compartments for admitting hot water thereto from the hot water inlet compartment, additional valves in each of said shower and tub outlet compartments for admitting cold water thereto from the cold water inlet compartment; and mechanism including a single actuating device and cams actuated thereby for operating said valves separately or in combination, whereby cold or hot water or bothcold and hot water may be admitted to said outlet compartments.

EDWARD L. KELLAN.

.r so i ing hot and cold water inlets; an outlet; hotand 

